Compositions – Water-softening or purifying or scale-inhibiting agents
Patent
1988-04-11
1989-03-21
Willis, Prince E.
Compositions
Water-softening or purifying or scale-inhibiting agents
134 38, 134 40, 252 67, 252162, 252170, 252364, C11D 750
Patent
active
048141003
ABSTRACT:
Azeotropic mixtures of 1,1-difluoro-2,2-dichloroethane (HCFC-132a) with acetone, the azeotropic mixture being useful in solvent cleaning applications.
REFERENCES:
patent: 4378303 (1983-03-01), Hisamoto et al.
patent: 4654160 (1987-03-01), Wilson et al.
patent: 4655956 (1987-04-01), Basu et al.
patent: 4659505 (1987-04-01), Enjo et al.
Merchant Abid N.
Redenbaugh Jill M.
E. I. Du Pont de Nemours and Company
Shipley James E.
Thompson Willie J.
Willis Prince E.
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